Unable To Transfer From Entrance or Guard, or Transfer via Setup Tool

Updated on December 16th, 2025

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A number of things can cause this problem such as wrong ID, wrong wiring, no power, and more.

Here are a few solutions to try:

Meter the R1/R2 terminal for voltage. If you get no voltage, then the R1R2 wire is not connected to the GT-BC, or the GT-BC is not turned on.
Multiple entrance stations or guard stations are all using the same ID. Adjust the dip switches to ID multiple entrance/guard stations as ID1, ID2, ID3, and so forth. Make sure to cycle power to the GT-BC after making changes. Cycling power on the back of the GT-MKB-N or GT-DMB-N will not work.
On an expanded system install, make sure the guard and entrance stations are wired into Common1 and not Sub1a.
When using the Setup Tool to upload to the DMB/DB1 or MKB1, if the entrance station’s ID is set as #5, it will fail. Change dip switches to reflect ID1, then cycle power to the GT-BC.
If you have a GT-MCX, then the entrance and guard station cannot be ID as #1 as the MCX takes that ID slot. Change the ID of the entrance or guard station as #2, then cycle power to the GT-BC.